AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials

AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials

The mesoporous silica SBA-15 and mesoporous K2CO3-SiO2 composite material were synthesized. Characterization of microstructure and morphology of materials indicated that the composite material had saved the porous framework of mesoporous silica SBA-15. Humidity sensing properties of different invers...

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Main Authors: Liang Guo, Xuefeng Chu, Xiaohong Gao, Chao Wang, Yaodan Chi, Xiaotian Yang
Format: Article
Language:English
Published: Hindawi Limited 2016-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2016/3508307
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spelling doaj-0a525d5f4bfc48caa03507371e95e2562020-11-24T22:01:37ZengHindawi LimitedJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/35083073508307AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite MaterialsLiang Guo0Xuefeng Chu1Xiaohong Gao2Chao Wang3Yaodan Chi4Xiaotian Yang5Jilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaJilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaJilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaJilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaJilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaJilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving, Jilin Jianzhu University, Changchun 130118, ChinaThe mesoporous silica SBA-15 and mesoporous K2CO3-SiO2 composite material were synthesized. Characterization of microstructure and morphology of materials indicated that the composite material had saved the porous framework of mesoporous silica SBA-15. Humidity sensing properties of different inverse proportion K2CO3-SiO2 composite material were studied and we found that the sample with 0.16 g/g K2CO3 exhibited excellent linearity in the wide humidity range. The complex impedance changed five orders of magnitude from 11% RH to 95% RH. The rapid response and recovery time were 10 s and 38 s, respectively. Finally a feasible ion transfer mechanism was brought forward to explain the sensing mechanism.http://dx.doi.org/10.1155/2016/3508307
collection DOAJ
language English
format Article
sources DOAJ
author Liang Guo
Xuefeng Chu
Xiaohong Gao
Chao Wang
Yaodan Chi
Xiaotian Yang
spellingShingle Liang Guo
Xuefeng Chu
Xiaohong Gao
Chao Wang
Yaodan Chi
Xiaotian Yang
AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
Journal of Chemistry
author_facet Liang Guo
Xuefeng Chu
Xiaohong Gao
Chao Wang
Yaodan Chi
Xiaotian Yang
author_sort Liang Guo
title AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
title_short AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
title_full AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
title_fullStr AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
title_full_unstemmed AC Humidity Sensing Properties of Mesoporous K2CO3-SiO2 Composite Materials
title_sort ac humidity sensing properties of mesoporous k2co3-sio2 composite materials
publisher Hindawi Limited
series Journal of Chemistry
issn 2090-9063
2090-9071
publishDate 2016-01-01
description The mesoporous silica SBA-15 and mesoporous K2CO3-SiO2 composite material were synthesized. Characterization of microstructure and morphology of materials indicated that the composite material had saved the porous framework of mesoporous silica SBA-15. Humidity sensing properties of different inverse proportion K2CO3-SiO2 composite material were studied and we found that the sample with 0.16 g/g K2CO3 exhibited excellent linearity in the wide humidity range. The complex impedance changed five orders of magnitude from 11% RH to 95% RH. The rapid response and recovery time were 10 s and 38 s, respectively. Finally a feasible ion transfer mechanism was brought forward to explain the sensing mechanism.
url http://dx.doi.org/10.1155/2016/3508307
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